<template>
    <div>
      <!--面包屑导航区-->
      <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item><a href="/">用户管理</a></el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
      </el-breadcrumb>
      <!--卡片视图区-->
      <el-card>
        <!--搜索和添加区域-->
        <el-row :gutter="20">
          <el-col :span="7">
              <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
              </el-input>
          </el-col>
          <el-col :span="4">
            <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
          </el-col>
        </el-row>

        <!--列表展示区 border边框 stripe斑马条纹-->
        <el-table :data="userlist"  border stripe>
          <el-table-column type="index"></el-table-column>
          <el-table-column prop="username" label="姓名"></el-table-column>
          <el-table-column prop="email" label="邮箱"></el-table-column>
          <el-table-column prop="mobile" label="电话"></el-table-column>
          <el-table-column prop="role_name" label="角色"></el-table-column>
          <el-table-column prop="mg_state" label="状态">
            <!--添加slot-scope属性可以获得本行的数据，其中scope为可以任意命名-->
            <template slot-scope="scope">
              <!--{{scope.row}}-->
              <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)" >
              </el-switch>
            </template>
          </el-table-column>
          <el-table-column label="操作" width="200">
            <template slot-scope="scope">
              <!--{{scope.row}}-->
              <!--操作栏中的三个按钮-->
              <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
              <el-button type="danger" icon="el-icon-delete" size="mini"></el-button>
              <el-tooltip effect="dark" content="详细信息" placement="top">
                <el-button type="info" icon="el-icon-question" size="mini"></el-button>
              </el-tooltip>
            </template>
          </el-table-column>
        </el-table>
        <!--分页功能 size-change/current-change 是事件，当某些内置的值
        发送变化后，会进行触发，触发之后调用函数进行打印-->
        <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum"
          :page-sizes="[1, 2, 5, 10]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="400">
        </el-pagination>
      </el-card>

      <!--添加用户的对话框-->
      <el-dialog
        title="提示"
        :visible.sync="addDialogVisible"
        width="30%"
        @close="addDialogClosed">
        <!--添加用户表单填写的信息-->
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>

      <!--修改用户对话框-->
      <el-dialog
        title="提示"
        :visible.sync="editDialogVisible"
        width="30%">
        <span>这是一段信息</span>
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editDialogVisible = false">确 定</el-button>
        </span>
      </el-dialog>

    </div>
</template>

<script>
  export default {
    name: 'User',
    data() {
      // 验证邮箱的规则
      var checkEmail = (rule, value, cb) => {
        // 验证邮箱的正则表达式
        const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/

        if (regEmail.test(value)) {
          // 合法的邮箱
          return cb()
        }

        cb(new Error('请输入合法的邮箱'))
      }

      // 验证手机号的规则
      var checkMobile = (rule, value, cb) => {
        // 验证手机号的正则表达式
        const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/

        if (regMobile.test(value)) {
          return cb()
        }

        cb(new Error('请输入合法的手机号'))
      }

      return {
        // 获取用户列表的参数对象
        queryInfo: {
          query: '',
          // 当前的页数
          pagenum: 1,
          // 当前每页显示多少条数据
          pagesize: 2
        },
        //用来储存后端返回的值
        userlist: [],
        total: 0,
        // 控制添加用户对话框的标志位
        addDialogVisible:false,
        // 控制修改用户对话框的标志位
        editDialogVisible:false,
        // 查询到的用户信息对象
        editForm: {},
        // 添加用户的表单数据
        addForm: {
          username: '',
          password: '',
          email: '',
          mobile: ''
        },
        // 添加表单的验证规则对象
        addFormRules: {
          username: [
            { required: true, message: '请输入用户名', trigger: 'blur' },
            {
              min: 3,
              max: 10,
              message: '用户名的长度在3~10个字符之间',
              trigger: 'blur'
            }
          ],
          password: [
            { required: true, message: '请输入密码', trigger: 'blur' },
            {
              min: 6,
              max: 15,
              message: '用户名的长度在6~15个字符之间',
              trigger: 'blur'
            }
          ],
          email: [
            { required: true, message: '请输入邮箱', trigger: 'blur' },
            { validator: checkEmail, trigger: 'blur' }
          ],
          mobile: [
            { required: true, message: '请输入手机号', trigger: 'blur' },
            { validator: checkMobile, trigger: 'blur' }
          ]
        }



      }
    },
    created() {
      this.getUserList()
    },
    methods: {
      async getUserList() {
        //发起请求
        const { data: res } = await this.$http.get('users', {
          params: this.queryInfo
        })
        //判断转态
        if (res.meta.status !== 200) {
          return this.$message.error('获取用户列表失败！')
        }
        //成功后储存变量的值
        this.userlist = res.data.users
        this.total = res.data.total
        console.log(res)
      },
      //监听一个页面可以有多少页的事件
      handleSizeChange(newSize){
        console.log(newSize)
        this.queryInfo.pagesize = newSize;
        this.getUserList();
      },
      //监听一个 页码变化 的事件
      handleCurrentChange(newPage){
        console.log(newPage)
        this.queryInfo.pagenum = newPage;
        this.getUserList();
      },
      // 监听 switch 开关状态的改变
      async userStateChanged (userinfo) {
        console.log(userinfo)
        const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
        if (res.meta.status !== 200) {
          userinfo.mg_state = !userinfo.mg_state
          return this.$message.error('更新用户状态失败！')
        }
        this.$message.success('更新用户状态成功！')
      },
      // 监听添加用户对话框的关闭事件
      addDialogClosed() {
        this.$refs.addFormRef.resetFields()
      },
      // 点击按钮，添加新用户
      addUser() {
        this.$refs.addFormRef.validate(async valid => {
          if (!valid) return
          // 可以发起添加用户的网络请求
          const { data: res } = await this.$http.post('users', this.addForm)

          if (res.meta.status !== 201) {
            this.$message.error('添加用户失败！')
          }

          this.$message.success('添加用户成功！')
          // 隐藏添加用户的对话框
          this.addDialogVisible = false
          // 重新获取用户列表数据
          this.getUserList()
        })
      },
      // 展示编辑用户的对话框
      async showEditDialog(id) {
        console.log(id)
        const { data: res } = await this.$http.get('users/' + id)

        if (res.meta.status !== 200) {
          return this.$message.error('查询用户信息失败！')
        }

        this.editForm = res.data
        this.editDialogVisible = true
      },
    }
  }
</script>

<style scoped>

</style>
